GAF Silicone Black Mastic 3.5 GAL
$416.37
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Why Silicone Mastic? GAF Silicone Mastic is a thick, high-build silicone sealant. Provides protection against leaks due to ponding water. A high-solids sealant Low odor Brush grade for easy application Fast moisture cure Enhanced adhesion to a variety of substrates VIDEO SPECS DOCS
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